Home / 11,651.40-17,474.08-5,405.28

Finding the Fourth Proportional to 11,651.40, 17,474.08 and 5,405.28

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Solution

The fourth proportional to 11,651.40, 17,474.08 and 5,405.28 is: 8,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,651.40 : 17,474.08 = 5,405.28 : x
  2. Step 2: Convert to fraction form
    11,651.40/17,474.08 = 5,405.28/x
  3. Step 3: Cross multiply
    11,651.40x = 17,474.08 × 5,405.28
  4. Step 4: Simplify right side
    11,651.40x = 94,452,295.14
  5. Step 5: Solve for x
    x = 94,452,295.14/11,651.40
  6. Step 6: Final answer
    x = 8,106.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.